Other Information
−Removed: Adoption or Termination of Trading Arrangements
−Removed: None of our directors or officers (as defined in Exchange Act Rule 16a-1(f)) adopted or terminated a Rule 10b5-1 trading arrangement or a non-Rule 10b5-1 trading arrangement (as defined in Item 408(c) of Regulation S-K) during the quarterly period covered by this report.
−Removed: 3.1 Restated Certificate of Incorporation of Huntington Ingalls Industries, Inc., date d April 30, 2025 (incorporated by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K filed on M ay 5, 2025, File No.
−Removed: 3.2 Restated Bylaws of Huntington Ingalls Industries, Inc., dat ed April 30, 2025 (incorporated by reference to Exhibit 3.2 to the Company's Current Report on Form 8-K filed on May 5, 2025, File No.
+Added: (c) Adoption or Termination of Trading Arrangements
+Added: Consistent with Item 408 of Regulation S-K, the following table reflects Rule 10b5-1 trading arrangements and non-Rule 10b5-1 trading arrangements (as defined in Item 408) entered into by any director or officer (as defined in Rule 16a-1(f) of the Exchange Act) during the quarter ended September 30, 2025.
+Added: (Title) Type of Trading Arrangement Date of Adoption Expiration Date of Trading Arrangement Aggregate Number of Securities to Be Purchased or Sold
+Added: Christopher D.
+Added: (Chief Executive Officer and President)
+Added: Rule 10b5-1 Trading Arrangement August 14, 2025 November 28, 2025 or such earlier date upon the completion of all trades under the plan or the occurrence of such other termination events under the plan.
+Added: Sale of 15,000 shares of common stock
+Added: 3.1 Restated Certificate of Incorporation of Huntington Ingalls Industries, Inc., dated April 30, 2025 (incorporated by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K filed on May 5, 2025, File No.
+Added: 3.2 Restated Bylaws of Huntington Ingalls Industries, Inc., dated April 30, 2025 (incorporated by reference to Exhibit 3.2 to the Company's Current Report on Form 8-K filed on May 5, 2025, File No.
31.1 Certification of the Chief Executive Officer Pursuant to Exchange Act Rule 13a-14(a)/15d-14(a), as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
8 unchanged sentences
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
−Removed: July 31, 2025 Huntington Ingalls Industries, Inc.
+Added: October 30, 2025 Huntington Ingalls Industries, Inc.
/s/ Nicolas Schuck
3 unchanged sentences
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.